FAQ: Frequently Asked Questions About Woodland Mills Stump Grinders

Want to know more before making an initial purchase or upgrading? These common questions will help you out

A stump grinder is a powerful piece of equipment, able to help clean up your land. 

And like any landowner, most stump grinder owners put a lot of time into researching before purchasing their equipment. You want to make the best decision for your land and we're here to help with that.

So let's go over some common questions landowners have before investing in a stump grinder.

What is the best stump grinder for me?

We usually recommend going with the biggest stump grinder your tractor can handle. Start by checking the horsepower at your tractor’s PTO and the lift capacity, then match it up with the compatible stump grinder models.

For example, if you own a tractor with a PTO output of 70 HP, the WG28 PRO would be a great model for you.

What are the benefits of choosing a PRO Series stump grinder over base models?

The base models are a no-frills, entry-level option, giving you solid, reliable stump grinding at a great price. Simple, tough, and ready to get the job done.

Our PRO models, like the WG28 PRO, come with extra features to make grinding smoother and more efficient. That includes our patent-pending shock absorption system, which keeps steady and consistent pressure to deliver smoother, more controlled stump grinding. We’ve also added a go/no-go visual indicator to help you manage your tractor speed while you grind. It’s technology you won’t find anywhere else, and we think it’s a big step forward in making stump grinding easier, more efficient and with performance in mind.

How quickly can a PTO stump grinder remove stumps?

That’s a tricky one, because it really depends on the stump. But generally speaking, you’re looking at minutes, not hours.

Things like stump size, height, and how dry or seasoned the wood is all play a role. That said, our stump grinders are built to work fast, and in most cases, you can expect to finish a stump in around 15 minutes or less.

How do I maintain my stump grinder?

When we’re engineering our stump grinders, it's one of our goals to make them easy to maintain. There are bearings which will need routine greasing, as detailed in the step-by-step maintenance guide in the manual. The carbide teeth are designed so that they can be resharpened, and replacement teeth are available if needed. Many customers find comfort in purchasing spare teeth with their stump grinder so they always have spares on hand.

Overall, there are a few key areas you'll want to routinely check but we try to make sure our machines are simple to keep running so you can continue grinding away stumps. These areas are covered in our easy to follow manual, which can be found in the black tube on the machine or in PDF format here.

Could I use a Woodland Mills stump grinder for commercial purposes?

Plenty of our customers use their stump grinders commercially, as part of their lawn and tree care arsenal for dealing with other's stumps. We fully encourage and support our customers using their stump grinders to make money for their businesses.

Do stump grinders come assembled? And if not, how long does assembly take?

When your stump grinder is delivered, it will be almost fully assembled. We have invested alot of time in creating easy to follow manuals to ensure the instructions don't leave you scratching your head. It should take about an hour or two to complete the final stages of assembly. A printed copy of your manual is included in the crate and can also be viewed in PDF format here.

What type of PTO stump grinder is best for hardwood stumps on a budget?

If you’re looking for a PTO stump grinder that can handle hardwood stumps without overspending, it starts with matching the grinder to your tractor’s PTO horsepower.

For tractors in the 15-45 PTO HP range, the WG24 is a reliable and practical option. It’s well suited for general stump removal, capable of grinding both smaller and larger stumps while also helping remove surface tree roots.

If your tractor has more available power, typically 35-80 PTO HP, stepping up to a larger model like the WG28 allows you to remove more material with each pass and work through stumps faster.

For landowners balancing budget and capability, both models offer a dependable way to handle land clearing, stump removal, and root grinding, with the right choice coming down to how much work you plan to take on and what your tractor can support. PRO models of the WG24 and WG28 also feature some great improvements make stump grinding easier and reduce cleanup.

What features should I look for when choosing a PTO stump grinder for doing commercial tree service work?

When choosing a stump grinder tractor attachment for higher-volume, commercial landscaping work, the most important factor is tractor compatibility, specifically your PTO horsepower and lifting capacity.

If your tractor can support it, stepping up to a larger model like the WG28 or WG28 PRO (35-80 PTO HP) allows you to take advantage of more power and remove more material with each pass, which becomes important when working through multiple stumps across different properties.

For operators doing frequent stump grinding, features that improve consistency and workflow start to matter more. The WG28 PRO includes a shock absorption system that helps maintain smoother, more even grinding, especially when working through tougher or irregular stumps.

At the end of the day, for commercial or repeat work, the right choice is a stump grinder that maximizes your tractor’s capability while helping you move efficiently from one job to the next.

What are the advantages to getting a larger stump grinder like the WG28 PRO?

A larger PTO stump grinder like the WG28 PRO is designed to remove more material with each pass, helping you work through stumps faster and more efficiently.

With a larger grinding disc and 44 tungsten carbide teeth, it can cut deeper into stumps and remove tree roots more effectively, reducing the number of passes needed to complete the job.

While smaller stump grinders can still get through tough stumps with enough time, a larger model helps improve overall productivity, especially when handling multiple stumps or larger root systems as part of doing ongoing land clearing or property maintenance.

If your tractor has the PTO horsepower to support it, stepping up in size is one of the simplest ways to save time and increase efficiency.

What difference do the shock absorbers on the WG24 PRO and WG28 PRO make when grinding stumps?

The WG24 PRO and WG28 PRO feature a patent-pending shock absorption system designed to help maintain consistent pressure while grinding.

As the grinding wheel works through a stump, resistance naturally increases and decreases. That movement transfers through the attachment and into the tractor’s 3-point hitch, which can make the grinding motion feel less steady.

The shock absorption system helps manage that movement by maintaining consistent pressure through the cut and preventing kickback during operation, resulting in smoother, more controlled stump grinding. It's a feature that landowners and landscapers will appreciate, whether they're grinding one stump or dozens.

While the base models still deliver reliable stump removal, the PRO models are designed to provide a more consistent and refined grinding experience, especially when working through multiple stumps.